请展开查看知识点列表
①32+15+28=
②97-25-43=
③100-38+19=
④28+42-29=
25+13= 48-18= 80-25= 100-60-30=
36+24= 68-25= 72+19= 25+10+20=
①36+16 =
②50-29=
③74-39 =
④63-45+21=
⑤80-18-26=
进入组卷